Posts by Tomo

Quote: Originally Posted by faileas  Thats about what i was thinking. I have another question though - i'm looking through a local supplier for LM317s, and they have a whole bunch of differently priced chips...

? http://diyaudioprojects.com/Solid/IRF610-Class-A-Headphone-Amp/ ?   You would probably want to fiddle with the gate voltage and look at the voltage across 20 ohms (R4). I am running 15V PSU doing 3.7~8V which is giving...

Hey, Cheap micro irons have low power and they don't work. Lower power means low temperature recovery. Which means tip temperature drops hard as you solder. Makes bad weld because solder stop flowing while you are soldering. Going...

Any words on Lead-Free solder? I am very familiar with the problems associated with these. I attended a conference for this issue few years back. I understand the issue of iron tip corrosion and high-temperature flow were quite...

Rock on, brother. One giant step for a DIY kind.

Do you happen to have a multimeter on you? It would be good if you know what's going on with the battery voltage. At least, it is the very first thing we generally do. "LED being dull" may indicate voltage failure, but you...

Well 50 bucks? Did you know Grado RA-1 cost about 300-500 dollars? You are saving money like a demon, man. Get a multimeter. Without it, it is like trying to golf without any clubs. A multimeter is absolutely important to have and to...

They all cost under 300 bucks or something. Not so expensive for recording equipment. ... Do you know a good microphone cost over one grand? ... Oh! So you all singers stop spit into the mike! Geez. Next time I see a singer does that...

Quote: if the power circuit is off just a little will it run fine at low volumes? it runs for a long time at low volumes just fine(i dont know the limits) When you turn off your amp, your amp stops drawing...

You should use your multimeter and check the circuit again. The power supply rail should be +4.5V and -4.5V to ground. Often this gets screwed up for one thing or another. You should also check the headphone output to ground. This...